DETERMINING THE MINIMUM FIRE PROTECTION REQUIREMENTS FOR DECOMMISSIONING 18/06/2015 Kory Krueger, PTech PLC Fire Safety Solutions
OBJECTIVES Types of Facilities Regulatory Requirements Decommissioning Planning Assessment Methodology OPEX
REGULATORY REQUIREMENTS NON-REACTOR FACILITIES NFPA 801 CSA N393 Fire Protection Program Fire Hazard Assessment (or Analysis) Means Of Egress Water Supply System Sprinklers Systems Standpipes Fire Detection, Alarm and Notification Fire Barriers Portable Fire Extinguishers Emergency Response
REGULATORY REQUIREMENTS FACILITIES WITH REACTORS CSA N293 CSA N393 Mothballing; Encasement; and Dismantling and Removal Remove Unnecessary Combustibles Control Ignition Sources Accessible Areas Protection of Operating Units
DECOMMISSIONING PLANNING Cease Commercial Operations no or limited revenue Required Structures Systems and Components storage of spent fuel (25 years) Reduction of Hazards Change of Use warehousing or office space
ASSESSMENT OBJECTIVES Minimize the fire protection footprint while continuing to meet the fire protection goals. Determine the fire protection support resources required to maintain the facility.
ASSESSMENT METHODOLOGY DEFINE BLDG SAFE STORAGE STATE IN-SERVICE PARTIALLY IN-SERVICE OUT-OF-SERVICE
ASSESSMENT METHODOLOGY IN-SERVICE BUILDINGS IN-SERVICE FHA CHANGES? YES RAD MAT. CRITICAL SSC? YES CODE REVIEW AND FHA NO NO DET. NEW FP REQ. YES FP SYSTEMS FOR SAFE SHUTDOWN? CODE REVIEW NO FHA REQ. APPLY CONFIRM DEV. OR JUSTIFY ALT. SOLUTION YES DEVIATIONS? NO STOP
ASSESSMENT METHODOLOGY OUT-OF-SERVICE BUILDINGS OUT-OF-SERVICE TRANS. COMB.? RAD. MATERIALS? IGN. SOURCES? SECURED ENTRY? REMOVED POSSIBLE FIRE IMPACT ON ADJ. BLDG/AREA YES DET. NEW FP REQUIRMENTS PRESENT NO RE-DEF. SAFE STORAGE STATE VACANT BLDG REQ. NO INT. REQUIREMENTS
ASSESSMENT METHODOLOGY PARTIALLY IN-SERVICE BUILDINGS PARTIALLY IN-SERVICE DEF. AREA STATES IN-SERVICE OUT-OF-SERVICE DET. EGRESS FROM IN-SERVICE IN-SERVICE EGRESS ROUTE? YES IN-SERVICE NO OUT-OF-SERVICE
ACME NUCLEAR POWER PLANT Define building Safe Storage States RB SG FT 1) IN-SERVICE TB 2) OUT OF SERVICE 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
ACME NUCLEAR POWER PLANT RB SG FT 1) IN-SERVICE TB 2) OUT OF SERVICE 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
ACME NUCLEAR POWER PLANT RB 1) IN-SERVICE 2) OUT OF SERVICE TB SG FT 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
ACME NUCLEAR POWER PLANT RB 1) IN-SERVICE 2) OUT OF SERVICE TB SG FT 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
ACME NUCLEAR POWER PLANT RB 1) IN-SERVICE 2) OUT OF SERVICE TB SG FT 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
ACME NUCLEAR POWER PLANT RB RB TB 3) PARTIALLY IN-SERVICE TB
ACME NUCLEAR POWER PLANT RB 3) PARTIALLY IN-SERVICE TB
ACME NUCLEAR POWER PLANT RB 3) PARTIALLY IN-SERVICE TB
ACME NUCLEAR POWER PLANT Define building Safe Storage States RB 3) PARTIALLY IN-SERVICE TB
ACME NUCLEAR POWER PLANT RB 1) IN-SERVICE 2) OUT OF SERVICE TB SG FT 3) PARTIALLY IN-SERVICE TRAILER AD WAREHOUSE
OPEX 1. Reactor buildings have become warehouses for highly contaminated materials and equipment. Example Photos Here 2. Life safety systems within Reactor buildings have been overlooked. 3. Turbine Halls and other vacancies have become valuable real-estate. 4. Although areas are classified as Out-of- Service, inspection and maintenance work is required; introducing occupants. 5. The life expectancy of the FP systems, including the water supply loop, may not be as long as the safe storage phase before demolition. 6. Inclusion of Fire Protection Assessments in the planning stage.
CONCLUSIONS There are many types of nuclear facilities that at some point need to be decommissioned. Regulatory Standards basically have the same requirements; keep the protection in place until the hazards are removed. Decommissioning Planning is a required step to determine area use and required critical structures, systems and components. Use the existing fire hazard assessments in conjunction with evaluations of the proposed area use.
CONTACT Kory Krueger, PTech PLC Fire Safety Solutions P: 1 (800) 675-2755 E: kkrueger@plcfire.com